Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 28, Issue 20, Pages 25949-25958Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-020-12273-y
Keywords
Photocatalysis; Visible light; VOCs; CQDs; Bi2WO6
Categories
Funding
- National Natural Science Foundation of China [21802119]
- National Key Research and Development Program [2016YFC0209203]
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province [JH201806]
- Funding for school-level research projects of Yancheng Institute of Technology [xjr2019005]
- Joint Open Fund of Jiangsu Collaborative Innovation Center for Ecological Building Material and Environmental Protection Equipments
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A series of CBW hybrid materials with different loading amounts of CQDs were prepared using a simple in situ hydrothermal method, showing superior photocatalytic activity in the degradation of VOCs with good stability and reusability.
A series of CQDs/Bi2WO6 (CBW) hybrid materials with different loading amounts of carbon quantum dots (CQDs) were prepared via a facile in situ hydrothermal method. As determined by multiple techniques including XRD, TEM, UV-vis, PL, TPR, and XPS, the CBW possessed expanded visible light response interval, decreased recombination rate of the photogenerated electron hole, and enhanced oxidation ability as compared with the pristine Bi2WO6. In addition, with different loading amounts of CQDs, the optical and electronic properties of the corresponding CBW were different. These CBW materials performed superior activities to the pristine Bi2WO6 in the photodegradation of VOCs under visible light, among which the CBW-2 demonstrated the best activity of almost complete degradation within only 120 min. Moreover, the CBW-2 exhibited high stability and reusability after five cycles.
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